Be anal, and lock the boat to the dock with a chain

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Don't you want to make your boat seen, draws some attention to it?
1) Put a dozen of those battery powered lights (people use them for jogging, on their bikes, and on their kids (Halloween being this week and the stores will be clearancing these lights for cheap) around the boat (on the T-top) engine. I have a couple on my boat (not worth a fraction of what anyone else's boat is worth, but it helps keep people off my boat).
2) Isn't there a boat tilt/trim lock to secure the outboards up and out of the water (for trailering) Not going to get far with the outboards locked in the up position.?
3) a battery powered, key pad remote Alarm with a built in motion sensor (purchase at any hardware and some even have a remote), and keep it below the water line where it won't detect in motion from boat movement, or someplace where it won't be seen (I keep mine in the cuddy with my rods and reels).
4) The Club.. I haven't tried this myself, but the club, chain your steering wheel (turned all the way to the port) to your seat (and may locate a locking nut for your steering wheel).
5) After fishing, leave some dead smelly bait, fish parts, on the steering wheel and on the seats at/around the helm. (nothing fresh or the birds will get it). You can leave it on little plastic, so you can easily remove it in the morning.
6) (I'm still using Carbed outboards). when you are done for the day, remove the fuel line and run the motors dry (FOG THEM). It might be difficult for you to start when you return, but at least it will still be there.
I'm just say'n...